[
    [
        "monastery",
        "convent"
    ],
    [
        "spokesman",
        "spokeswoman"
    ],
    [
        "Catholic_priest",
        "nun"
    ],
    [
        "Dad",
        "Mom"
    ],
    [
        "Men",
        "Women"
    ],
    [
        "councilman",
        "councilwoman"
    ],
    [
        "grandpa",
        "grandma"
    ],
    [
        "grandsons",
        "granddaughters"
    ],
    [
        "prostate_cancer",
        "ovarian_cancer"
    ],
    [
        "testosterone",
        "estrogen"
    ],
    [
        "uncle",
        "aunt"
    ],
    [
        "wives",
        "husbands"
    ],
    [
        "Father",
        "Mother"
    ],
    [
        "Grandpa",
        "Grandma"
    ],
    [
        "He",
        "She"
    ],
    [
        "boy",
        "girl"
    ],
    [
        "boys",
        "girls"
    ],
    [
        "brother",
        "sister"
    ],
    [
        "brothers",
        "sisters"
    ],
    [
        "businessman",
        "businesswoman"
    ],
    [
        "chairman",
        "chairwoman"
    ],
    [
        "colt",
        "filly"
    ],
    [
        "congressman",
        "congresswoman"
    ],
    [
        "dad",
        "mom"
    ],
    [
        "dads",
        "moms"
    ],
    [
        "dudes",
        "gals"
    ],
    [
        "ex_girlfriend",
        "ex_boyfriend"
    ],
    [
        "father",
        "mother"
    ],
    [
        "fatherhood",
        "motherhood"
    ],
    [
        "fathers",
        "mothers"
    ],
    [
        "fella",
        "granny"
    ],
    [
        "fraternity",
        "sorority"
    ],
    [
        "gelding",
        "mare"
    ],
    [
        "gentleman",
        "lady"
    ],
    [
        "gentlemen",
        "ladies"
    ],
    [
        "grandfather",
        "grandmother"
    ],
    [
        "grandson",
        "granddaughter"
    ],
    [
        "he",
        "she"
    ],
    [
        "himself",
        "herself"
    ],
    [
        "his",
        "her"
    ],
    [
        "king",
        "queen"
    ],
    [
        "kings",
        "queens"
    ],
    [
        "male",
        "female"
    ],
    [
        "males",
        "females"
    ],
    [
        "man",
        "woman"
    ],
    [
        "men",
        "women"
    ],
    [
        "nephew",
        "niece"
    ],
    [
        "prince",
        "princess"
    ],
    [
        "schoolboy",
        "schoolgirl"
    ],
    [
        "son",
        "daughter"
    ],
    [
        "sons",
        "daughters"
    ],
    [
        "twin_brother",
        "twin_sister"
    ]
]